One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,8)(3,10,12,7)(4,13,15,16)(6,11,14,9)(17,18)(19,21)(20,22)(23,27)(24,28)(25,29)(26,32)(30,31)(1,3,5,12)(2,7,8,10)(4,9,15,11)(6,13,14,16)(17,19,22,29,24,30,23,26)(18,25,27,21,28,32,20,31)(1,4,14,10,5,15,6,7)(2,3,11,16,8,12,9,13)(17,20,22,18,24,27,23,28)(19,25,29,21,30,32,26,31)(2,8)(3,12)(9,11)(13,16)(17,21,23,25,24,31,22,32)(18,26,20,30,28,29,27,19)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.